Comments on: Spring Expression Language (SpEL) Primer http://dhruba.name/2009/12/30/spring-expression-language-spel-primer/ Maximum Zeal ~ Emphatic prose on indulged fascinations Tue, 13 Mar 2012 03:08:43 +0000 hourly 1 http://wordpress.org/?v=3.2.1 By: Srinivas http://dhruba.name/2009/12/30/spring-expression-language-spel-primer/comment-page-1/#comment-32478 Srinivas Mon, 19 Sep 2011 11:28:21 +0000 http://dhruba.name/?p=1363#comment-32478 Great article. Great article.

]]> By: Roman http://dhruba.name/2009/12/30/spring-expression-language-spel-primer/comment-page-1/#comment-22843 Roman Thu, 17 Mar 2011 21:08:03 +0000 http://dhruba.name/?p=1363#comment-22843 Hi Dhruba. How navigate array in array with SpEL? public class Tree { private List childTs; public List getChildTs() {return this.childTs; } } "childTs.childTs" gives org.springframework.expression.spel.SpelEvaluationException: EL1008E:(pos 8): Field or property 'childTs' cannot be found on object of type 'org.hibernate.collection.PersistentBag' "childTs[0].childTs" it's OK "childTs[*].childTs" gives 1042E:(pos 8): Problem parsing right operand ??? Hi Dhruba.
How navigate array in array with SpEL?
public class Tree {
private List childTs;
public List getChildTs() {return this.childTs; }
}
“childTs.childTs”
gives
org.springframework.expression.spel.SpelEvaluationException: EL1008E:(pos 8): Field or property ‘childTs’ cannot be found on object of type ‘org.hibernate.collection.PersistentBag’
“childTs[0].childTs” it’s OK
“childTs[*].childTs”
gives
1042E:(pos 8): Problem parsing right operand
???

]]> By: Krishna http://dhruba.name/2009/12/30/spring-expression-language-spel-primer/comment-page-1/#comment-21924 Krishna Thu, 17 Feb 2011 15:08:11 +0000 http://dhruba.name/?p=1363#comment-21924 HI, There is good article on <a href="http://www.javabeat.net/articles/246-introduction-to-spring-expression-language-spel-1.html" rel="nofollow">Spring Expression Language.</a> Thanks, Krishna HI,

There is good article on Spring Expression Language.

Thanks,
Krishna

]]> By: Rattler http://dhruba.name/2009/12/30/spring-expression-language-spel-primer/comment-page-1/#comment-21290 Rattler Mon, 24 Jan 2011 11:29:44 +0000 http://dhruba.name/?p=1363#comment-21290 I have a problem, my bean definitions must to have dots in his names ... Field or property 'java' cannot be found on object of type 'org.springframework.beans.factory.config.BeanExpressionContext' Please confirm that dot are not allowed in bean name while using Spring expression language. I have a problem, my bean definitions must to have dots in his names

…

Field or property ‘java’ cannot be found on object of type ‘org.springframework.beans.factory.config.BeanExpressionContext’

Please confirm that dot are not allowed in bean name while using Spring expression language.

]]> By: Dave H http://dhruba.name/2009/12/30/spring-expression-language-spel-primer/comment-page-1/#comment-21198 Dave H Wed, 19 Jan 2011 16:52:52 +0000 http://dhruba.name/?p=1363#comment-21198 Can you take projection a step further. I have some JAXB generated classes which contain collections which again contain collections etc. At the moment I have to iterate through each level to the bottom of the tree to call a getName() method. Its all very simple code but extremely verbose. Ideally I'd like to something similar to XPATH and in just one line specify the tree structure, and get it to call getName() on each item on the bottom level of the tree, returning a List of all matching items. I hope that makes sense. Thanks D Can you take projection a step further. I have some JAXB generated classes which contain collections which again contain collections etc.

At the moment I have to iterate through each level to the bottom of the tree to call a getName() method. Its all very simple code but extremely verbose. Ideally I’d like to something similar to XPATH and in just one line specify the tree structure, and get it to call getName() on each item on the bottom level of the tree, returning a List of all matching items.

I hope that makes sense.

Thanks

D

]]> By: Kailash http://dhruba.name/2009/12/30/spring-expression-language-spel-primer/comment-page-1/#comment-19411 Kailash Tue, 07 Dec 2010 21:25:14 +0000 http://dhruba.name/?p=1363#comment-19411 Well well documented stuff, appreciate this. I have a problem - ------------------ How to set a property's value (using setValue or assignment) on List of object in one go ? I would hate to iterate over the List to do the assigment . Kailash Well well documented stuff, appreciate this.

I have a problem -
——————

How to set a property’s value (using setValue or assignment) on List of object in one go ? I would hate to iterate over the List to do the assigment .

Kailash

]]> By: Uma http://dhruba.name/2009/12/30/spring-expression-language-spel-primer/comment-page-1/#comment-15498 Uma Fri, 13 Aug 2010 18:26:11 +0000 http://dhruba.name/?p=1363#comment-15498 Does reference of this form in an SpEL expression @Value("#{ systemProperties['user.region'] }") still use PropertyPlaceholderConfigurer to retrieve the property values? /U Does reference of this form in an SpEL expression

@Value(“#{ systemProperties['user.region'] }”)

still use PropertyPlaceholderConfigurer to retrieve the property values?

/U

]]> By: Ashwin Jayaprakash http://dhruba.name/2009/12/30/spring-expression-language-spel-primer/comment-page-1/#comment-11904 Ashwin Jayaprakash Wed, 27 Jan 2010 18:19:00 +0000 http://dhruba.name/?p=1363#comment-11904 I wonder how it performs compared to MVEL. I wonder how it performs compared to MVEL.

]]> By: Dhruba Bandopadhyay http://dhruba.name/2009/12/30/spring-expression-language-spel-primer/comment-page-1/#comment-11743 Dhruba Bandopadhyay Thu, 07 Jan 2010 00:33:22 +0000 http://dhruba.name/?p=1363#comment-11743 Thanks Martin. It was great fun going through the feature set and compiling an account and examples. Glad it's helpful. Thanks Martin. It was great fun going through the feature set and compiling an account and examples. Glad it’s helpful.

]]> By: Martin Harris http://dhruba.name/2009/12/30/spring-expression-language-spel-primer/comment-page-1/#comment-11742 Martin Harris Wed, 06 Jan 2010 22:21:32 +0000 http://dhruba.name/?p=1363#comment-11742 Super post Dhruba. This was one of my favorites when I wrote <a href="http://martinaharris.com/2009/11/5-things-spring-3-0/" rel="nofollow">this</a> sometime back. The detail in your post is incredibly useful. Super post Dhruba. This was one of my favorites when I wrote this sometime back. The detail in your post is incredibly useful.

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